40651644127 has 2 divisors, whose sum is σ = 40651644128. Its totient is φ = 40651644126.

The previous prime is 40651644113. The next prime is 40651644133. The reversal of 40651644127 is 72144615604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40651644127 - 2⁷ = 40651643999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40651644127.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40651648127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20325822063 + 20325822064.

It is an arithmetic number, because the mean of its divisors is an integer number (20325822064).

Almost surely, 2^40651644127 is an apocalyptic number.

40651644127 is a deficient number, since it is larger than the sum of its proper divisors (1).

40651644127 is an equidigital number, since it uses as much as digits as its factorization.

40651644127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 40651644127 in words is "forty billion, six hundred fifty-one million, six hundred forty-four thousand, one hundred twenty-seven".